Door-lock construction



1 643,764 Sept 1927 w. c. DEVEREAUX DOOR LOCK CONSTRUCTION Filed June '7, 1926 2 Sheets-Sheet 1 wh h ,WZZ a a??? C .Zererez ax attozuw 1,643,764 P 1927' w. c. DEVEREAUX DOOR LOCK CONSTRUCTION Filed June 7, 1926 2 Sheets-Sheet 2 avweutop 7/222 M! 77? CJFVf/e V)! Patented Sept. 27, 1927.

UNITED STATES WILLIAM C. DEVEREAUX, OF DETROIT, MTCHIGAN.

DOOR'LOCK CONSTRUCTION.

Application filed June 7,

This invention relates generally to door handle assemblies and consists of certain novel features of construction, combinations and arrangements of parts as will be more fully described and particularly pointed out in the appended claims.

Heretofore it has been the custom in constructing automobiles to provide different locks for the doors, transmission, ignition and spare tire carriers; thus, it has been necessary for the owner of a car to carry separate keys for each lock. One of the main objects of this invention is to obviate the use of so many different keys by equipping the handle assembly with a lock of standard construction, so that similar ones may be applied to the other automobile parts aforesaid to be locked, thereby providing each automobile with uniform locking means controlled by a single key. Thus, the assembly operation of the looks with the handles is simplified and standardized and the necessity of carrying a key for each lock is obviated entirely.

Another object is to provide a door handle assembly in which the lock is anchored in such a way that it would be impossible for an unauthorized person to remove the lock to ain access to the inside of the automobile.

With these and other objects in View, the invention resides in certain novel features of construction, combinations and arrangements of parts as will be more fully described and particularly pointed out in the appended claims.

In the accompanying drawings:

Figure 1 is a longitudinal sectional view of the handle assembly with the lock cylinder removed;

Figure 2 is a longitudinal sectional view of the handle assembly with the lock cylinder in place;

Figure 3 is a transverse section through line 33 of Figure 2;

Figure 4 is a section through a wooden pillar showing the handle assembly secured thereto;

Figure 5 is a section through a wooden pillar showing a modification of Figure 4;

Figure 6 is a cross section of an all metal pillar construction showing the handle assembly secured thereto.

Referring now particularly to the drawings wherein like reference characters indicate like parts, it will be noted that there is illustrated an outer shank 1 of hollow tubu- 1926. Serial No. 114,361.

lar formation. the lower end of which is reduced as at 2 to receive a solid spindle 3 which is preferably secured thereto by a welding operation. The upper end of this spindle projects into the enlarged portion of the shank, as clearly shown at 4: in Figure 1. The lower extremity of the spindle engages with any suitable latch mechanism (not shown).

The upper end of the shank 1 is flattened out into an annular flange 5, which rests in a depression 6 formed in a handle reinforcing strip 7 the flange 5 being preferably Welded to the depressed portion 6. Upon either side of the strip 7 are located additional reinforcing strips 8 and 9 which are preferably welded to strip 7 A top finish strip 10 is secured upon thestrip 9 and is held in place by means of a cover portion 11 having transversely extendlng side and end flanges 12 and 13, respectively, that constitute a housing for the reinforcing strips, said flanges being preferably turned in and crimped as at 14 to securely hold a bottom finish strip 15 in place. This construction forms a very eflicient handle grip, and as shown in Figure 1, openings are provided in the several reinforcing strips in communication with the hollow shank so as to provide a clear passage for the insertion of a cylinder lock, the construction of which will be described hereinafter. Upon the shank 1 is rigidly mounted a handle tube 16, while a base plate 17 is loosely mounted thereon. An escutcheon plate 18 is mounted upon the base plate substantially covering the same.

The base plate is provided with an annular flange 21 snugly fitting around the tubular shank 1 just above the reduced portion 2. Located upon this reduced portion in any suitable manner. is a cup washer 22 supporting the lower end of a coil sprin 23 encircling the shank. The upper en of the spring abuts against the base plate holding t is plate and the escutcheon plate undertension upon the shank. If desired, a washer 24 may be interposed between the spring and base plate.

The upper-end of the spindle 3 is provided with a channel 25 in which is slidably mounted. a locking bolt 26. This bolt is slipped into place through an o nitzg 27 in the tubular shank before the ase plate and escutcheon plate are placed in position.

The base plate is provided with an opening 28 corresponding to the opening 27 and which normally is in register with said opening. The opening 27 is always in alignment with the channel 25 and when the opening 28 is in register with the opening 27, it is also in alignment with the channel.

A locking cylinder designated at'29 and which may be of any standard construction is mounted in the upper end of the hollow tubular shank 1 by slipping the cylinder through the openings in the grip portion and down into the shank. Any suitable means may be employed for securing the cylinder in place. In the present instance, a circumferential groove 30 is formed in the wall of the cylinder in which is placed. a double ofiset spring 31 so constructed that at diametrically opposite sides thereof humps 32 are formed which protrude beyond the outside diameter of the cylinder wall. When the cylinder is slipped into the tubular shank, the spring is compressed until openings 33, cut in the walls of the shank, are encountered, whereupon the humps 32 will then spring into the openings 33 and will securely lock the cylinder in place in the shank.

As shown in Figure 2, the lock cylinder is provided at its lower end with an eccentrically mounted projection 34 which engages in a slot 35 formed in the locking bolt 26.

Assuming that the base plate andescutcheon plate are securely fastened toa suitable pillar, such as the one shown in Figure 4, and that the cylinder is in unlocked position, rotatibn of the grip will cause the tubular shank l and spindle 3 to rotate, which in turn will-operate the latch mechanism. To look the grip against movement the cylinder is rotated by means of a key 36, moving the projection 34 in the slot 35, thereby sliding the lockingbolt 26 over into engagement with the openings 27 and 28. In this position the grip and likewise the shank and spindle are locked against rotary movement so that the latch mechanism cannot be operated.

To unlock the handle it is only necessary to turn the key in the cylinder back to its original position, whereupon the locking bolt 26 is retracted and disengaged from the openings 27 and 28, agaln allowing rotary movement of the spindle, shank an Referring now to Figure 4, it will be noted that a wooden pillar is designated at 37, bein provided with a transversely extending ore 38, the outer portion oi which is of larger diameter than the inner portion, thereby forming shoulders 39.

Mounted on the spindle 3 is a fiat washer 40 secured thereto in any suitable manner and when the handle is inserted in the transverse bore, this washer will engage the ea-wee shoulders 39 and rest thereon, preventing any further movement of the spindle within the bore.

It hasbeen the practice in the past for unauthorized persons to unscrew the escutcheon plate so that it could be pulled out free from the framework to gain access to the lock mechanism. As before explained, the present construction has been designed to prevent the removal of the escutcheon plate and the subsequent tampering with the lock mechanism. As shown, this is accomplished by providing a screw 41 that is screwed into the pillars so that the inner end thereof projects into the transverse bore just in advance of the washer 40, limiting the longitudinal movement thereof.

The base plate 17 is provided with recessed bosses 42 located on either side of the shank 1, while the escutcheon plate is provided with corresponding countersunk recessed portions 43 fitting into the bosses as shown in Fig. 2. As will be noted, the bosses are substantially thick and are received in correspondingly deep recesses 44, located in the pillar 37. The thickness of the bosses as compared with the limit of movement of the washer is such that should. an unauthorized person attempt to remove the escutcheon plate, the washer 40 would strike against the inner end of the screw 41 before the bosses had cleared the recesses and thus prevent any further outward movement of the escutcheon plate and the subsequent removal of the same.

In. Figure 5 is shown an arrangement similar to that disclosed in Figure 4, with the exception that a machine screw 45 provided with a squared end 46 is used in place of the wood screw shown in Figure 4.

In Figure 6 an all metal pillar construction is disclosed, A metallic strip 47 is secured to the panel 48 in any suitable manner and is provided with depressed portions 49 corresponding to the recesses 44 for receiving the bosses 42. Projecting at right angles from the strip 47 is an integral flange 50 to which a nut 51 is rigidly secured. A bolt 52 corresponding to the screws 41 and 45 is provided for engagement with the nut to limit the movement of the s indle.

From the foregoing it wil be apparent that an improved construction has been provided which will greatly facilitate in the assembling of the shank and lock mechanism of an automobile door handle and also provide an arrangement of parts which will discourage tampering with the locking mechanism by an unauthorized person.

While it is believed that from the foregoing description, the nature and advantage of m invention will be readily apparent, I desire to have it understood that I do not limit myself to what is herein shown and resorted to when desired as fall within the' scope of what is claimed.

lVhat I claim as my invention is:

1. A handle assembly comprising a hollow shank, a lock cylinder in said shank, a grip secured to one end of said shank, a spindle secured to the other end thereof, and means associated with the said spindle and controlled by said lock cylinder for locking said shank and grip against rotary movement.

2. A handle assembly comprising a hollow shank, a lock cylinder in said shank provided with a projection upon its lower end, a spindle secured to said shank, and means engaging said projection and said spindle and controlled by said lock cylinder for locking said shank against rotary movement.

3. A handle assembly comprising a hollow shank provided with an opening in its wall, a lock cylinder in said shank, a base plate having a flange surrounding said shank provided with an opening, a spindle secured to said shank and having an end extending partially therein provided with a channel, a locking bolt slidable within said channel and having a groove formed therein, and a pin eccentrically mounted on the lower end of the said lock cylinder for moving said locking bolt into and out of locking engagement with the openings in said shank and base plate for locking said shank against rotary movement.

4. A handle assembly comprising a hollow shank provided with openings in its walls, a lock cylinder provided with a groove, and a s ring located in said groove and provided wit portions engaging the openings in the walls of said shank for locking said lock cylinder therein against withdrawal.

5. A handle assembly comprising a hollow shank provided with openings in its walls at diametrically opposite sides thereof, a

lock cylinder provided with a circumferential groove, and a spring located in said groove and provided with hump portions engaging the openings in the walls of said shank for locking said lock cylinder therein against withdrawal.

6. A handle assembly comprising a hollow shank, a lock cylinder in said shank, a spindle secured to said shank, and means associated with the said spindle and controlled by said lock cylinder for locking said shank against r'otary movement.

7 A handle assembly comprising a hollow shank having a reduced portion at one end thereof, a lock cylinder in said shank, a spindle secured in the reduced portion of said shank, and means asociated with the said spindle and controlled by said lock cylinder for locking said shank against rotary movement. I

8. A handle assembly comprising a hollow shank having a reduced portion at one end thereof, a lock cylinder in said shank, a spindle secured in the reduced portion of said shank and having an end portion provided with a channel extending into the enlarged portion of said shank, a locking bolt slidable within said channel and means controlled by said lock cylinder for locking said shank against rotary movement.

9. A handle assembly comprising a hollow shank having a reduced portion at one end thereof, a lock cylinder in said shank, a spindle havin an intermediate portion thereof secured within the reduced portion of said shank and having a portion extending into the enlarged portion thereof provided with a transverse channel, a locking bolt slidable within said channel and means controlled by said lock cylinder for locking said shank against rotary movement.

10. A handle assembly comprising a hollow shank provided with an opening in its wall and having a reduced portion at one end thereof, a lock cylinder in said shank, a

spindle secured in the reduced portion of said shank and having an end portion extending into the enlarged portion thereof provided with a channel, a base plate having a flange surrounding the enlarged portion of the shank provided with an opening in alignment with the said shank opening and spindle channel a locking bolt movable in said spindle channel and means controlled by said lock cylinder for moving said bolt into and out of locking engagement with the openings in said shank and base plate. .for locking said shank against rotary movement.

In testimony whereof I afiix my signature.

WILLIAM C. DEVEREAUX. 

